TenantAtlas/docs/ui/shared-diff-presentation-foundation.md
ahmido 3f6f80f7af feat: refine onboarding draft flow and RBAC diff UX (#171)
## Summary
- add the RBAC role definition diff UX upgrade as the first concrete consumer of the shared diff presentation foundation
- refine managed tenant onboarding draft routing, CTA labeling, and cancellation redirect behavior
- tighten related Filament and diff rendering regression coverage

## Testing
- updated focused Pest coverage for onboarding draft routing and lifecycle behavior
- updated focused Pest coverage for shared diff partials and RBAC finding rendering

## Notes
- Livewire v4.0+ compliance is preserved within the existing Filament v5 surfaces
- provider registration remains unchanged in bootstrap/providers.php
- no new Filament assets were added; existing deployment practice still relies on php artisan filament:assets when assets change

Co-authored-by: Ahmed Darrazi <ahmed.darrazi@live.de>
Reviewed-on: #171
2026-03-14 20:09:54 +00:00

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# Shared Diff Presentation Foundation
## Purpose
Use the shared diff presentation foundation when a screen already has simple before/after data and needs:
- one consistent state vocabulary (`changed`, `unchanged`, `added`, `removed`)
- shared summary badges
- shared row rendering
- inline list add/remove rendering
- one display policy for nulls, booleans, scalars, lists, and compact structured values
This foundation is presentation-only. It does not compare domain records for you, does not fetch data, and does not replace domain-specific diff rules.
## Use It When
- a consumer already has keyed baseline/current values
- the comparison can be represented as row-level fields or simple scalar lists
- the screen benefits from reusable summary and row partials without needing a new Filament component type
## Do Not Use It When
- the screen needs token-level or line-level diff behavior
- the layout would become less clear if flattened into generic rows
- the screen relies on domain-specific compare semantics that are not simple value presentation
The current specialized renderers stay specialized unless a later spec chooses otherwise:
- `resources/views/filament/infolists/entries/normalized-diff.blade.php`
- `resources/views/filament/infolists/entries/assignments-diff.blade.php`
- `resources/views/filament/infolists/entries/scope-tags-diff.blade.php`
## Presenter Usage
```php
use App\Support\Diff\DiffPresenter;
$presentation = app(DiffPresenter::class)->present(
baseline: $baseline,
current: $current,
changedKeys: $changedKeys,
labels: $labels,
meta: $meta,
);
```
Expected input shape:
- `baseline`: keyed prior values
- `current`: keyed current values
- `changedKeys`: optional presenter hint for keys that should be treated as changed
- `labels`: optional display labels keyed by field key
- `meta`: optional view-safe metadata keyed by field key
`DiffPresenter` returns a `DiffPresentation` containing:
- `summary`: `DiffSummary`
- `rows`: ordered `DiffRow` instances
## Blade Usage
```blade
@include('filament.partials.diff.summary-badges', [
'summary' => $presentation->summary,
])
@foreach ($presentation->rows as $row)
@include('filament.partials.diff.row', [
'row' => $row,
'compact' => false,
'dimUnchanged' => true,
])
@endforeach
```
`compact` reduces spacing for dense layouts. `dimUnchanged` keeps unchanged content quieter than meaningful changes.
## RBAC Role Definition Adoption
`resources/views/filament/infolists/entries/rbac-role-definition-diff.blade.php` is the first concrete consumer of the shared diff foundation.
Its consumer-local builder lives in `app/Support/Diff/RbacRoleDefinitionDiffBuilder.php` and is responsible for:
- preserving the existing RBAC evidence payload as the input contract
- adding fallback rows for `Role source` and `Permission blocks` when side metadata exists
- keeping top-level role metadata ahead of permission-block detail in a deterministic order
- designating these RBAC list-like keys for inline add/remove rendering:
- `Role definition > Scope tag IDs`
- `Permission block * > Allowed actions`
- `Permission block * > Denied actions`
- `Permission block * > Conditions`
Consumer-local choices for the first RBAC pass:
- unchanged rows stay visible but muted through `dimUnchanged`
- one-sided RBAC rows render through the shared `added` and `removed` states
- no local “show only changes” toggle is shipped in this first pass
## Standalone Stringifier Usage
If a specialized renderer should not adopt `DiffPresenter`, it can still reuse `ValueStringifier`:
```php
use App\Support\Diff\ValueStringifier;
$displayValue = app(ValueStringifier::class)->stringify($value);
```
Current shared formatting rules are:
- `null` -> `—`
- `true` / `false` -> `Enabled` / `Disabled`
- empty string -> `""`
- empty list -> `[]`
- simple scalar lists -> comma-separated values
- structured values -> compact JSON
## Adoption Checklist
Before adopting the foundation in a consumer spec:
1. Confirm the consumer already owns authorization and compare-shape decisions.
2. Confirm the data is simple row/list presentation, not specialized diff logic.
3. Add or update Pest coverage for presenter output and rendered partial output.
4. Keep destructive actions, routes, and resource/global-search behavior unchanged unless the consumer spec explicitly covers them.
See `specs/141-shared-diff-presentation-foundation/quickstart.md` for the matching feature-level quickstart.